Cap for a bottle



FIG. 1 is a perspective view of a cap for a bottle, showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof, opposite that of FIG. 3;

FIG. 5 is a side view thereof; and,

FIG. 6 is a side view thereof, from a side opposite that of FIG. 5. 

CLAIM The ornamental design for a cap for a bottle, as shown and described. 